Product Overview

Spirax Sarco TD52M/TD52MLC/TD52MA/TD52MLCA are maintainable thermodynamic steam traps, all manufactured from stainless steel, designed for small condensate load applications, particularly suitable for steam mains drainage.

Key Advantages

• All Stainless Steel: Body, cap, and disc all made from stainless steel for excellent corrosion resistance
• Maintainable Design: Replaceable disc reduces maintenance costs
• Anti-Air Binding Optional: TD52MA/MLCA equipped with anti-air binding disc for venting requirements
• Insulating Cover Optional: Effectively reduces heat loss and prevents environmental factors from affecting operation (except 1" size)
• EU Certified: Fully compliant with Pressure Equipment Directive 2014/68/EU, EN 10204 3.1 certification available

Model Selection

Model	Features	Application
TD52M	Standard type	Small condensate load applications
TD52MLC	Low capacity type	Very low condensate load applications
TD52MA	Anti-air binding type	Applications requiring venting
TD52MLCA	Low capacity anti-air binding	Low load with venting requirements

Technical Specifications

Pressure and Temperature Parameters

Parameter	Specification
Body Design Conditions	PN63
PMA Maximum Allowable Pressure	63 bar g @ 120°C
TMA Maximum Allowable Temperature	425°C @ 42 bar g
Minimum Allowable Temperature	0°C
PMO Maximum Working Pressure (Saturated Steam)	52 bar g
TMO Maximum Working Temperature - TD52M/MLC	400°C @ 43 bar g
TMO Maximum Working Temperature - TD52MA/MLCA	255°C @ 52 bar g
Minimum Working Temperature	0°C
PMOB Working Back Pressure	Not exceeding 80% of upstream pressure
Minimum Working Differential - TD52M/MLC	0.25 bar
Minimum Working Differential - TD52MA/MLCA	0.8 bar
Maximum Cold Hydraulic Test Pressure	95 bar g

Size and Connection Parameters

Model Series	Nominal Size	Connection
TD52M, TD52MA	¼", ⅜", ½", ¾", 1"	BSP Rp (ISO 7-1) or NPT threaded
TD52MLC, TD52MLCA	½"	BSP Rp (ISO 7-1) or NPT threaded

Product Structure

Materials

Part No.	Part Name	Material
1	Body	AISI 420 Stainless Steel
2	Cap	AISI 416 Stainless Steel
3	Disc	BS 1449 420 S45 Stainless Steel
4	Insulating Cover (Optional)	BS 1470 SIC M Aluminum Alloy

Dimensions and Weights

Valve Dimensions and Weights (Approximate, mm and kg)

Size	A	B	E	H	J	K	L	Weight
¼"	37	54	13	41	53	57	38	0.45
⅜"	37	54	13	41	53	57	38	0.43
½" LC	38	65	15	41	55	57	38	0.47
½"	39	70	15	41	55	57	38	0.60
¾"	43	80	20	41	59	57	38	0.90
1"	51	89	23	41	-	-	-	1.40

Capacity Characteristics

Condensate discharge capacity varies with differential pressure, covering a range of 0.25-52 bar, with capacity increasing as differential pressure rises.

Size	Characteristics	Application
¼", ⅜", ½" LC	Low flow	Very low condensate loads
½"	Medium capacity	Standard condensate loads
¾"	Higher capacity	Higher load requirements
1"	Maximum capacity	High condensate load applications

Installation and Maintenance

Installation Notes

• Preferably install on horizontal pipework, but can be installed in other positions as required
• If insulating cover is required, note that it is not available for 1" size
• Ensure inlet and outlet connections are secure to prevent leakage

Recommended Tightening Torques

Part	Size	Spanner Size (A/F)	Torque (N·m)
Cap	¼"	36	180 - 200
Cap	⅜"	36	180 - 200
Cap	½"	36	180 - 200
Cap	¾"	41	180 - 200
Cap	1"	55	250 - 275

Maintenance Requirements

• For detailed maintenance procedures, refer to the Installation and Maintenance Instructions (IM-P068-31)
• Regular inspection of disc condition is recommended to ensure proper trap operation
• Follow recommended tightening torques during disassembly and reassembly

Spare Parts

Available Spare Parts

Spare Part Name	Part No.	Notes
Disc (Pack of 3)	3	Suitable for all models
Insulating Cover	4	Not available for 1" size

Spare Parts Ordering

When ordering spare parts, specify the part name, trap model and size.

Example: 1 pack of 3 discs for Spirax Sarco ½" TD52MLC thermodynamic steam trap

Ordering Information

Ordering Requirements

When ordering, provide full product name specifying trap model, size, connection type and other key configurations. If certification or optional accessories are required, specify in the order.

Ordering Examples

• Standard Order: 1 Spirax Sarco ½" TD52MLC thermodynamic steam trap, BSP threaded connection
• With Anti-Air Binding: 1 Spirax Sarco ½" TD52MLCA thermodynamic steam trap
• With Certification: 1 Spirax Sarco ¾" TD52MA thermodynamic steam trap, EN 10204 3.1 certification required

Notes

• All certification/inspection requirements must be specified at time of order
• If anti-air binding disc or insulating cover is required, specify in the order
• Confirm product model matches application pressure, temperature and condensate load requirements